About this item

【High Quality Material】These drill bits are made of HSS4241, rustproof and durable, the cutting edge of the drill bit is smooth, without chatter or fluted edges. For clean and precise countersinking, chamfering or beveling of round holes in workpieces. 【Internal Chip Evacuation】The countersunk drill bit eliminates chips during cutting, reduces clogging and prevents metal splashing, making cutting faster, cleaner and quieter, and the round handle can be used with a variety of systems. 【Higher Efficiency】The HSS coated chamfering tool has high precision and sharpness, the tip is at a 90° angle for clean and precise countersinking. Increase productivity and save time and energy in household and industrial operations. 【WIDE APPLICATION】 Suitable for cutting plywood, wood, acrylic, PVC board, plastic and metal. When working with materials, the drill bit must be kept cool between drilling holes. (Note: It is necessary to cooperate with the bench drill operation and the hand electric drill cannot be used.) 【Package Included】 Our set contains 4 HSS countersink drill bits for deburring, metalworking and non-metal cutting 2-5mm, 5-10mm, 10-15mm, 15-20mm are available in four different sizes to meet your different cutting needs..